Many people are sceptical about buying second-hand gadgets, nowadays, and this is partially due to the fact that they are not aware of the advantages of going for second-hand phones.
However, buying a second-hand iPhone would be far more advantageous. For starters, a new iPhone is far more expensive than a used one. You could save a ton of cash and spend it elsewhere, while enjoying the features of the more recent models at a better price. On the other hand, if you were to buy the same phone from an Apple store, you’d have to pay full-price!
You won’t have to worry much about specifications because older Apple phones do support awesome specs and you’d get the phone’s premium build quality, too.
Another point to note is that newer models support newer features and it might take time for one to get used to these features. Some users might prefer the features supported by older versions. For example, many iPhone enthusiasts prefer the screen size and grip of the iPhone 4S over that of the iPhone 5 or 5S.
Thus the opportunity cost of investing in a second-hand iPhone is far less than that of investing in a brand new iPhone.